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Mayo Clinic

Disclosed Sep 8, 201016 years ago1,740 affectedConfirmed

Official notice

An employee of the covered entity (CE) impermissibly accessed medical records containing the protected health information (PHI) of 1,740 patients for a period of 4 �� years. The PHI affected by the breach included the demographic information of 691 individuals, and both demographic and clinical information of 1,049 individuals. Following the breach, the CE conducted an investigation, terminated the involved employee, re-trained its employees regarding patient privacy and access to PHI, and enhanced its supervision and monitoring of employees' PHI access activities. It also provided breach notification to the affected individuals, HHS, and the media, as well as substitute notice on its website. OCR obtained assurances that the CE completed the voluntary compliance action described above. \ \

What is known

People affected1,740 (as reported to HHS)
DisclosedSep 8, 2010
AttackLost or stolen device
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Source
HHS OCR breach report (archive, resolved): Mayo Clinic (Healthcare Provider, MN)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalSep 8, 20101,740

Other breaches at Mayo Clinic

BreachAffected
Disclosed Mar 28, 2025Mar 28, 20251 year agoInsider1,869
Disclosed Nov 3, 2023Nov 3, 20232 years agoInsider1,152
Disclosed Oct 5, 2020Oct 5, 20205 years agoInsider1,614
Disclosed Mar 22, 2019Mar 22, 20197 years agoInsider1,902
History of this record
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

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